Hi Alexander. I made a little progress on this error with the help of the application's authors. By changing the application's method for rendering offscreen buffers from SGIX (hardware acceleration) to GLX (no hardware acceleration) I can avoid the error. Although SGIX works on my Nvidia card with Linux, it does not work for many people, including apparently all ATI users. Information on this application setting is here: http://playerstage.sourceforge.net/doc/Gazebo-manual-0.5-html/gazebo_opengl.html So the problem may be in many X servers besides just Cygwin/X.
However, Gazebo now dies immediately after with the cryptic message "Bad System Call": $ gazebo.exe example.world *** Gazebo 0.5.1 *** using display [127.0.0.1:0.0] rendering: [GLX offscreen] direct [no] RGBA [8 8 8 8] depth [16] Bad system call The X server's messages during this time are: glWinCreateContext:677: glWinCreateContext glWinCreateContext:696: glWinCreateContext done glWinDestroyContext:411: glWinDestroyContext (ctx 0x0) Can you tell from this whether the problem is in the application or in the rendering? Dave
